How Traffic Lights Work

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Traffic lights detect vehicles using a variety of methods. Check out this podcast from HowStuffWorks.com to find out how timers, inductive loops and other detectors keep traffic running smoothly.

What if traffic lights could adjust for the actual flow of traffic happening at any given moment? Learn how smart, networked technology could help drivers (and pedestrians) in this episode of BrainStuff, based on this article: https://science.howstuffworks.com/engineering/civil/s ...  Show more

This 2019 episode looks at a few of the moments in traffic light history that got us to where we are today, as well as what made them a necessity in the first placeSee omnystudio.com/listener for privacy information. 

The history of traffic signals is way more interesting than you might think. Trust us. 

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